Air-feeding device for stoves or furnaces.



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vUNITEID STATES Patented April 1 1, 1905 PATENT OFFICE.

TUCKER A'TwYMAN AND WILLIAM c. rwYMAN, oE KANSAS CITY,

' MISSOURI. d I Y AIR-FEEDlNe. DEvloE FoFisTovEs' 0R FURNACES.

SPECIFICATION forming' part of Letters Patent No. 7S-7,0145 dated April11, 1905.

Application ned my 13,1904. serai No. 217,036.

.7b fr/ZZ 10h/0709x7125 may concern,.- 'f .Be it known that we, TUCKERA. TWYMA and WILLIAM G. TwYMAN, citizens of the United States, andresidents of Kansas City, in the county of Jackson and State ofMissouri, have invented certain new and useful Improvements inAir-Feeding Devices for Stoves or Furnaces, of which the following is aspecification.

Our4 invention 'relates to stoves or furnaces, and more particularly tomeans embodied therein for producing a thorough distribution of a bodyof air across the surface of a fire-bed a distance above the latter forthe purpose of intercepting the arising gases and carbon and effecting athorough combustion of the same. Y

The object of the invention is vto provide an arrangement for thepurpose specified which is particularly simple in construction andhighly efficient in operation.

To this end the invention includes the combination and arrangement ofparts to be hereinafter described, and particularly pointed out in theclaims. Y

Although the invention is susceptible of various modifications and isequally applicable to stoves and furnaces, in order to present a clearexemplification of the invention it has only been deemed necessary toonly illustrate the same in connection with a conventional constructionof coal-burning stove and to describe the invention in this association.

In the accompanying drawings, Figure 1 is a longitudinal sectional viewof-a coalburning stove with our invention embodied therein. Fig. 2 is aperspective view of a modified form of the. air-feeding Ineans orattachment separated from the stove; and Fig. 3 is a cross-sectionalview of the attachment shown in Fig. 1, being drawn to an enlargedscale.

Our invention` includes generally a primary heating-conduit anda/superimposed air-distributingconduit preferably embodied in the formof a structure substantially complete in itself or .in an attachmentseparate from the stove proper and adapted to be readily placed thereinor removed therefrom.

'at the best advantage for the purpose of so directing the air-streamsissuing therefromV that the arising unconsumed combustibles will beintercepted and ignited while the heating-conduit is located in closerproximity to the fire-bed. n

In theupresent exemplification of our invention the heating-conduit 4 isdisclosed as a circular or ring-shaped pipe arranged in closejuxtaposition to the wall of the stove and having a plurality of lateralbranches radiating outwardly at separate points and projecting entirelythrough the wall of the stove but it will be understood that saidconduit in every case will be so constructed as to substantially conformto the cross-sectional shape of the portion of the stove in which it 'islocated. The branches are provided upon the outside of the stove andpreferably at their ends with suitable means for restricting-theirvareas more or less, such as ordinary dampers 6. The distributing-conduit7 in the illustrated exemplification of the inventionis also circular orof ring shape,

being.. of substantiallythe same diameter as the conduit 5, arranged asuitable distance `above the latter and connectedrigidly thereto byhollow columns or members S, which provide open passages orcommunicating ways between the two conduits. The members S .are sospaced relative to each other 'i and the branches` that they intersectthe conduit 4 Vat points approximately centrally between the branches. iAplurality of ports 9, radiating toward a common center, is provided inthe innermost portion of the wall of the conduit 7, through whichtheheated air issues in a plurality of streams.

As will be understood fromthe foregoing description, the air enteringthrough the branches 5 will travel in a somewhat circuitous path inorder to reach the distributingconduit and in this travel is suieientlyheated so that when it issues from the openings 9 in a plurality ofstreams it will readily unite with the arising unconsumed combustiblesand serve to ignite the latter.

In the form of our invention shown in Figs. 1 and 3 a distributin branch10 is shown as extending diametrica ly across the distributing-conduit,opening into the latter at its opposite ends and provided with aplurality of discharge-ports l1 in its opposite sides.

The construction and operation of our invention will be readilyunderstood upon reference to the foregoing description and theaccompanying drawings, and it will be appreciated that the parts andcombinations recited may be varied within a wide range without departingfrom the spirit and scope thereof.

Having thus described our invention, what we claim as new7 and desire tobe secured by Letters Patent, isq

1. The combination with a heater, of an air-distributing device arrangedtherein comprising a heating-conduit having a plurality of branchesextending radially therefrom and projecting entirely through the wall ofthe heater, means for regulating the areas of said branches, asuperimposed distributing-conduit having discharge-ports therein andhollow connecting members extending between the conduits, substantiallyas described.

2. An air-distributing attachment for heaters, comprising aheating-conduit having a plurality of branches extending radiallytherefrom, a superimposed distributing-conduit spaced a distance abovethe heating-conduit and having discharge-ports through its inner walland hollow vertical connecting members disposed substantially centrallybetween said branches and providing open passage-ways between the twoconduits7 substantially as described.

3, An air-distributing attachment for heaters, comprising aheating-conduit having a plurality of branches radiating therefrom, asuperimposed distributing-conduit having discharge-orifices through itsinner wall, a distributing-branch extending diametrically across thesame, opening thereinto at its opposite ends and having lateraldischargeports, and vertical connecting members interposed between thetwo conduits for connecting the same rigidly to each other, said membershaving passage-ways therethrough, substantially as described. Y

4. An air-distributing attachment for heaters, comprising an endlessheating-conduit shaped to conform to the cross-sectional contour of theheater with which it is associated, branches extending therefrom, meansfor regulating the effective areas of said branches, adistributing-conduit of substantially the shape of the heating-conduitand arranged a distance above the latter, and hollow ineinbers extendingbetween the two conduits f or rigidly connecting the saine to each otherand providing open passage-ways therebetween, said member being spacedout of register with said branches, substantially as described.

ln testimony whereof we have hereunto signed our names, in the presenceof two attesting witnesses, at Kansas City, in the county of Jackson andState of l\=lissouri, this 5th day of July, 1904.

TUCKER A. TWYMAN. WILLIAM G. NVYMAN.

Witnesses FLORENCE O. ANDEnsoN, HENRY GEiss.

